Untangling the Devil's Corkscrew

The video explores the discovery and mystery of Devil's Corkscrews in Nebraska, initially thought to be plant remains. The mystery was solved when bones of an extinct beaver, Palaeo Caster, were found inside, revealing these structures as trace fossils of their spiral burrows. The video discusses the purpose of these burrows, including predator avoidance and climate adaptation, and concludes with the extinction of Palaeo Caster and the significance of trace fossils.

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